EP1406386A3 - Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication - Google Patents
Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication Download PDFInfo
- Publication number
- EP1406386A3 EP1406386A3 EP03021253A EP03021253A EP1406386A3 EP 1406386 A3 EP1406386 A3 EP 1406386A3 EP 03021253 A EP03021253 A EP 03021253A EP 03021253 A EP03021253 A EP 03021253A EP 1406386 A3 EP1406386 A3 EP 1406386A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- piezoelectric
- communication apparatus
- filter
- resonator
- concavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010409 thin film Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/173—Air-gaps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02102—Means for compensation or elimination of undesirable effects of temperature influence
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/174—Membranes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/564—Monolithic crystal filters implemented with thin-film techniques
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor
- H03H9/568—Electric coupling means therefor consisting of a ladder configuration
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06022420A EP1755216B1 (fr) | 2002-09-25 | 2003-09-18 | Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002279428 | 2002-09-25 | ||
JP2002279428A JP3879643B2 (ja) | 2002-09-25 | 2002-09-25 | 圧電共振子、圧電フィルタ、通信装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06022420A Division EP1755216B1 (fr) | 2002-09-25 | 2003-09-18 | Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication |
EP06022420.1 Division-Into | 2006-10-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1406386A2 EP1406386A2 (fr) | 2004-04-07 |
EP1406386A3 true EP1406386A3 (fr) | 2006-03-29 |
EP1406386B1 EP1406386B1 (fr) | 2011-04-06 |
Family
ID=31987094
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06022420A Expired - Lifetime EP1755216B1 (fr) | 2002-09-25 | 2003-09-18 | Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication |
EP03021253A Expired - Lifetime EP1406386B1 (fr) | 2002-09-25 | 2003-09-18 | Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06022420A Expired - Lifetime EP1755216B1 (fr) | 2002-09-25 | 2003-09-18 | Résonateur piézoélectrique, filtre piézoélectrique et appareil de communication |
Country Status (7)
Country | Link |
---|---|
US (1) | US7161447B2 (fr) |
EP (2) | EP1755216B1 (fr) |
JP (1) | JP3879643B2 (fr) |
KR (1) | KR100550086B1 (fr) |
CN (1) | CN1322671C (fr) |
AT (2) | ATE504975T1 (fr) |
DE (1) | DE60336617D1 (fr) |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7275292B2 (en) * | 2003-03-07 | 2007-10-02 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Method for fabricating an acoustical resonator on a substrate |
US7164222B2 (en) * | 2003-06-26 | 2007-01-16 | Intel Corporation | Film bulk acoustic resonator (FBAR) with high thermal conductivity |
JP2005117641A (ja) | 2003-09-17 | 2005-04-28 | Matsushita Electric Ind Co Ltd | 圧電体共振器、それを用いたフィルタ及び共用器 |
JP2005311567A (ja) * | 2004-04-20 | 2005-11-04 | Sony Corp | フィルタ装置及び送受信機 |
CN100578928C (zh) | 2004-09-10 | 2010-01-06 | 株式会社村田制作所 | 压电薄膜共振器 |
US7388454B2 (en) * | 2004-10-01 | 2008-06-17 | Avago Technologies Wireless Ip Pte Ltd | Acoustic resonator performance enhancement using alternating frame structure |
US8981876B2 (en) | 2004-11-15 | 2015-03-17 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Piezoelectric resonator structures and electrical filters having frame elements |
US7202560B2 (en) | 2004-12-15 | 2007-04-10 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Wafer bonding of micro-electro mechanical systems to active circuitry |
US7791434B2 (en) | 2004-12-22 | 2010-09-07 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Acoustic resonator performance enhancement using selective metal etch and having a trench in the piezoelectric |
JP4696597B2 (ja) * | 2005-03-03 | 2011-06-08 | 宇部興産株式会社 | 薄膜圧電共振器およびそれを用いた薄膜圧電フィルタ |
JP4617936B2 (ja) * | 2005-03-14 | 2011-01-26 | ソニー株式会社 | 圧電共振素子の製造方法および圧電共振素子 |
US7369013B2 (en) * | 2005-04-06 | 2008-05-06 | Avago Technologies Wireless Ip Pte Ltd | Acoustic resonator performance enhancement using filled recessed region |
JP2006339873A (ja) * | 2005-05-31 | 2006-12-14 | Toshiba Corp | 薄膜圧電共振器、フィルタ及び電圧制御発振器 |
US8008993B2 (en) * | 2005-09-30 | 2011-08-30 | Nxp B.V. | Thin-film bulk-acoustic wave (BAW) resonators |
US7675390B2 (en) * | 2005-10-18 | 2010-03-09 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Acoustic galvanic isolator incorporating single decoupled stacked bulk acoustic resonator |
US7737807B2 (en) * | 2005-10-18 | 2010-06-15 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Acoustic galvanic isolator incorporating series-connected decoupled stacked bulk acoustic resonators |
WO2007052370A1 (fr) * | 2005-11-04 | 2007-05-10 | Murata Manufacturing Co., Ltd. | Résonateur piézoélectrique à couche mince |
US7612636B2 (en) * | 2006-01-30 | 2009-11-03 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Impedance transforming bulk acoustic wave baluns |
JP4963193B2 (ja) * | 2006-03-07 | 2012-06-27 | 日本碍子株式会社 | 圧電薄膜デバイス |
US7746677B2 (en) * | 2006-03-09 | 2010-06-29 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | AC-DC converter circuit and power supply |
US20070210748A1 (en) * | 2006-03-09 | 2007-09-13 | Mark Unkrich | Power supply and electronic device having integrated power supply |
US20070210724A1 (en) * | 2006-03-09 | 2007-09-13 | Mark Unkrich | Power adapter and DC-DC converter having acoustic transformer |
US7479685B2 (en) * | 2006-03-10 | 2009-01-20 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Electronic device on substrate with cavity and mitigated parasitic leakage path |
US20080094186A1 (en) * | 2006-10-04 | 2008-04-24 | Viking Access Systems, Llc | Apparatus and method for monitoring and controlling gate operators via power line communication |
KR100780842B1 (ko) * | 2006-12-14 | 2007-11-30 | 주식회사 에스세라 | 공진 구조체를 가지는 압전 공진자의 형성방법들 |
JP4870541B2 (ja) * | 2006-12-15 | 2012-02-08 | 太陽誘電株式会社 | 圧電薄膜共振器およびフィルタ |
DE112007002969B4 (de) | 2007-01-24 | 2017-12-21 | Murata Mfg. Co., Ltd. | Piezoelektrischer Resonator und piezoelektrisches Filter |
US7791435B2 (en) * | 2007-09-28 | 2010-09-07 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Single stack coupled resonators having differential output |
US7855618B2 (en) * | 2008-04-30 | 2010-12-21 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Bulk acoustic resonator electrical impedance transformers |
US7732977B2 (en) * | 2008-04-30 | 2010-06-08 | Avago Technologies Wireless Ip (Singapore) | Transceiver circuit for film bulk acoustic resonator (FBAR) transducers |
JP5229945B2 (ja) * | 2008-09-09 | 2013-07-03 | 太陽誘電株式会社 | フィルタ、デュープレクサ、および通信装置 |
US8248185B2 (en) * | 2009-06-24 | 2012-08-21 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Acoustic resonator structure comprising a bridge |
US8902023B2 (en) * | 2009-06-24 | 2014-12-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator structure having an electrode with a cantilevered portion |
US8456257B1 (en) * | 2009-11-12 | 2013-06-04 | Triquint Semiconductor, Inc. | Bulk acoustic wave devices and method for spurious mode suppression |
US8193877B2 (en) * | 2009-11-30 | 2012-06-05 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Duplexer with negative phase shifting circuit |
US9243316B2 (en) | 2010-01-22 | 2016-01-26 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Method of fabricating piezoelectric material with selected c-axis orientation |
US8796904B2 (en) | 2011-10-31 | 2014-08-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic resonator comprising piezoelectric layer and inverse piezoelectric layer |
US8962443B2 (en) | 2011-01-31 | 2015-02-24 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Semiconductor device having an airbridge and method of fabricating the same |
US9154112B2 (en) | 2011-02-28 | 2015-10-06 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Coupled resonator filter comprising a bridge |
US9136818B2 (en) | 2011-02-28 | 2015-09-15 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Stacked acoustic resonator comprising a bridge |
US9083302B2 (en) | 2011-02-28 | 2015-07-14 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Stacked bulk acoustic resonator comprising a bridge and an acoustic reflector along a perimeter of the resonator |
US9203374B2 (en) | 2011-02-28 | 2015-12-01 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Film bulk acoustic resonator comprising a bridge |
US9048812B2 (en) | 2011-02-28 | 2015-06-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave resonator comprising bridge formed within piezoelectric layer |
US9148117B2 (en) | 2011-02-28 | 2015-09-29 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Coupled resonator filter comprising a bridge and frame elements |
US9425764B2 (en) | 2012-10-25 | 2016-08-23 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Accoustic resonator having composite electrodes with integrated lateral features |
US9490418B2 (en) | 2011-03-29 | 2016-11-08 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator comprising collar and acoustic reflector with temperature compensating layer |
US9444426B2 (en) | 2012-10-25 | 2016-09-13 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Accoustic resonator having integrated lateral feature and temperature compensation feature |
US9401692B2 (en) | 2012-10-29 | 2016-07-26 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator having collar structure |
US9490771B2 (en) | 2012-10-29 | 2016-11-08 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator comprising collar and frame |
US8575820B2 (en) | 2011-03-29 | 2013-11-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Stacked bulk acoustic resonator |
US8350445B1 (en) | 2011-06-16 | 2013-01-08 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Bulk acoustic resonator comprising non-piezoelectric layer and bridge |
US8922302B2 (en) | 2011-08-24 | 2014-12-30 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator formed on a pedestal |
CN102567779A (zh) * | 2012-01-05 | 2012-07-11 | 天津理工大学 | IDT/ ZnO/ Al/金刚石多层膜结构的声表面波射频识别标签 |
US9385684B2 (en) | 2012-10-23 | 2016-07-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator having guard ring |
KR101959204B1 (ko) * | 2013-01-09 | 2019-07-04 | 삼성전자주식회사 | 무선 주파수 필터 및 무선 주파수 필터의 제조방법 |
WO2016158048A1 (fr) * | 2015-03-31 | 2016-10-06 | 株式会社村田製作所 | Résonateur |
JP6903471B2 (ja) | 2017-04-07 | 2021-07-14 | 太陽誘電株式会社 | 圧電薄膜共振器、フィルタおよびマルチプレクサ |
KR20200046535A (ko) * | 2018-10-25 | 2020-05-07 | 삼성전기주식회사 | 탄성파 필터 장치 |
CN111193488B (zh) * | 2018-11-14 | 2024-01-26 | 天津大学 | 散热结构、带散热结构的体声波谐振器、滤波器和电子设备 |
CN111193490A (zh) * | 2018-11-14 | 2020-05-22 | 天津大学 | 散热结构、带散热结构的体声波谐振器、滤波器和电子设备 |
CN111342797A (zh) * | 2018-12-18 | 2020-06-26 | 天津大学 | 压电滤波器及具有其的电子设备 |
CN111010132A (zh) * | 2019-07-08 | 2020-04-14 | 天津大学 | 体声波谐振器、滤波器及电子设备 |
CN111010129A (zh) * | 2019-07-15 | 2020-04-14 | 天津大学 | 体声波谐振器器件、滤波器和电子设备 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5231327A (en) * | 1990-12-14 | 1993-07-27 | Tfr Technologies, Inc. | Optimized piezoelectric resonator-based networks |
EP1041717A2 (fr) * | 1999-03-30 | 2000-10-04 | Agilent Technologies Inc | Résonateurs à ondes acoustiques de volume avec suppression de mode latérale améliorée |
US6131256A (en) * | 1995-06-29 | 2000-10-17 | Motorola, Inc. | Temperature compensated resonator and method |
US6150703A (en) * | 1998-06-29 | 2000-11-21 | Trw Inc. | Lateral mode suppression in semiconductor bulk acoustic resonator (SBAR) devices using tapered electrodes, and electrodes edge damping materials |
EP1209807A2 (fr) * | 2000-11-24 | 2002-05-29 | Nokia Corporation | Structure de filtre comprenant des résonateurs piézoélectriques |
WO2002043243A1 (fr) * | 2000-11-24 | 2002-05-30 | Infineon Technologies Ag | Filtre d'ondes acoustiques en volume |
EP1217734A2 (fr) * | 2000-12-21 | 2002-06-26 | Agilent Technologies, Inc. (a Delaware corporation) | Résonateur à ondes acoustiques de volume comportant un système de réflexion de périmètre |
EP1233511A2 (fr) * | 2001-02-14 | 2002-08-21 | Agilent Technologies, Inc. (a Delaware corporation) | Filtre passe-bande comportant une réponse de filtre asymétrique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5831609A (ja) | 1981-08-19 | 1983-02-24 | Nec Corp | 薄膜圧電振動子 |
JPS60206033A (ja) | 1984-03-29 | 1985-10-17 | Seiko Instr & Electronics Ltd | 半導体集積回路素子 |
JPH02185057A (ja) | 1989-01-12 | 1990-07-19 | Toshiba Corp | 微細配線層を有する半導体装置 |
US5910756A (en) * | 1997-05-21 | 1999-06-08 | Nokia Mobile Phones Limited | Filters and duplexers utilizing thin film stacked crystal filter structures and thin film bulk acoustic wave resonators |
FI107660B (fi) * | 1999-07-19 | 2001-09-14 | Nokia Mobile Phones Ltd | Resonaattorirakenne |
JP2001168674A (ja) | 1999-12-09 | 2001-06-22 | Murata Mfg Co Ltd | 圧電共振子及び電子機器 |
JP3979073B2 (ja) | 2000-12-06 | 2007-09-19 | 株式会社村田製作所 | 圧電共振子、圧電フィルタおよびデュプレクサ |
US6828713B2 (en) * | 2002-07-30 | 2004-12-07 | Agilent Technologies, Inc | Resonator with seed layer |
-
2002
- 2002-09-25 JP JP2002279428A patent/JP3879643B2/ja not_active Expired - Lifetime
-
2003
- 2003-09-08 US US10/656,246 patent/US7161447B2/en not_active Expired - Lifetime
- 2003-09-18 EP EP06022420A patent/EP1755216B1/fr not_active Expired - Lifetime
- 2003-09-18 DE DE60336617T patent/DE60336617D1/de not_active Expired - Lifetime
- 2003-09-18 AT AT03021253T patent/ATE504975T1/de not_active IP Right Cessation
- 2003-09-18 AT AT06022420T patent/ATE555544T1/de active
- 2003-09-18 EP EP03021253A patent/EP1406386B1/fr not_active Expired - Lifetime
- 2003-09-19 KR KR1020030065146A patent/KR100550086B1/ko active IP Right Grant
- 2003-09-25 CN CNB031603572A patent/CN1322671C/zh not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5231327A (en) * | 1990-12-14 | 1993-07-27 | Tfr Technologies, Inc. | Optimized piezoelectric resonator-based networks |
US6131256A (en) * | 1995-06-29 | 2000-10-17 | Motorola, Inc. | Temperature compensated resonator and method |
US6150703A (en) * | 1998-06-29 | 2000-11-21 | Trw Inc. | Lateral mode suppression in semiconductor bulk acoustic resonator (SBAR) devices using tapered electrodes, and electrodes edge damping materials |
EP1041717A2 (fr) * | 1999-03-30 | 2000-10-04 | Agilent Technologies Inc | Résonateurs à ondes acoustiques de volume avec suppression de mode latérale améliorée |
EP1209807A2 (fr) * | 2000-11-24 | 2002-05-29 | Nokia Corporation | Structure de filtre comprenant des résonateurs piézoélectriques |
WO2002043243A1 (fr) * | 2000-11-24 | 2002-05-30 | Infineon Technologies Ag | Filtre d'ondes acoustiques en volume |
EP1217734A2 (fr) * | 2000-12-21 | 2002-06-26 | Agilent Technologies, Inc. (a Delaware corporation) | Résonateur à ondes acoustiques de volume comportant un système de réflexion de périmètre |
EP1233511A2 (fr) * | 2001-02-14 | 2002-08-21 | Agilent Technologies, Inc. (a Delaware corporation) | Filtre passe-bande comportant une réponse de filtre asymétrique |
Non-Patent Citations (2)
Title |
---|
KETCHAM R S ET AL: "Performance of TFR filters under elevated power conditions", IEEE, 1 June 1988 (1988-06-01), pages 106 - 111, XP010076398 * |
SEABURY C W ET AL: "Thin film ZnO based bulk acoustic mode filters", MICROWAVE SYMPOSIUM DIGEST, 1997., IEEE MTT-S INTERNATIONAL DENVER, CO, USA 8-13 JUNE 1997, NEW YORK, NY, USA,IEEE, US, vol. 1, 8 June 1997 (1997-06-08), pages 181 - 184, XP010228608, ISBN: 0-7803-3814-6 * |
Also Published As
Publication number | Publication date |
---|---|
DE60336617D1 (de) | 2011-05-19 |
US7161447B2 (en) | 2007-01-09 |
EP1755216A2 (fr) | 2007-02-21 |
ATE555544T1 (de) | 2012-05-15 |
KR20040027353A (ko) | 2004-04-01 |
US20040056735A1 (en) | 2004-03-25 |
JP2004120219A (ja) | 2004-04-15 |
CN1497842A (zh) | 2004-05-19 |
CN1322671C (zh) | 2007-06-20 |
EP1406386B1 (fr) | 2011-04-06 |
ATE504975T1 (de) | 2011-04-15 |
JP3879643B2 (ja) | 2007-02-14 |
KR100550086B1 (ko) | 2006-02-08 |
EP1755216A3 (fr) | 2007-02-28 |
EP1406386A2 (fr) | 2004-04-07 |
EP1755216B1 (fr) | 2012-04-25 |
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